baber/WOPTO huggingface dataset:
Patent GB-696683-A (GB)
Title: Improvements in or relating to retaining devices
Inventor: GOOS CARLOS ENRIQUE FEDERICO
IPC: G05G5/00
Filed: 1950-08-19
Abstract: 696,683. Stays for hinged articles. BIROME SOC. ANON COMERCIAL E INDUSTRIAL. Aug. 19, 1950, No. 20577/50. Class 65 (i) In means for releasably connecting a movable member c to a fixed member b and comprising a pin 3 on one member co-operating with a heartshaped guideway on the other member, the guideway is formed by a heart-shaped aperture having an opening 2 at its base, and a heart-shaped portion 5 disposed asymmetrically within the aperture, whereby to guide the pin, when vertically displaced into said opening, around the guideway in one direction to a retaining notch 12, and, when vertically displaced from the notch, to guide the pin in the same direction back to the opening. The pin is constituted by a roller mounted at the free end of an arm 18 pivoted at its other end to the member c, which may be the lid of a box or an automobile hood, the arm being biased to the vertical position by a pair of light springs 21. The guideway is formed in a plate 1 fixed to the member b, the opening being offset from the lowermost cusp 4 of the central portion, whereby the pin is directed into the left-hand branch 7 of the guideway. The upper left-hand cusp 10 of the central portion is offset from the upper left-hand cusp 9 of the aperture, whereby the pin on being lowered from the latter travels along the upper edge 11 of the central portion till it lodges in the notch 12. The latter being offset from the middle cusp 13 of the aperture, the pin on being raised therefrom travels along the right-hand flank 14 of cusp 13 till it reaches the upper right-hand cusp 15 of the aperture which is offset from the upper righthand cusp 16 of the central portion, whereby the pin on being lowered travels along the right-hand branch 17 of the guideway to the opening 2.
Patent GB-1496094-A (GB)
Title: Photoresist images
IPC: G03F7/32
Filed: 1976-05-19
Abstract: 1496094 Photo-resist materials and processes INTERNATIONAL BUSINESS MACHINES CORP 19 May 1976 [30 June 1975] 20613/76 Heading G2C A positive resist image is formed by selectively exposing a polymeric film comprising a) 50 to 99À5 mole per cent of poly alkyl methacrylate and b) 0À5 to 50 mole per cent of poly acrylic acid, methacrylic acid and/or crotonic acid; treating the film with an agent which swells only the exposed areas and removing the swollen areas with a liquid which is incapable of molecularly dissolving the film. The preferred polymers are a) poly methyl methacrylate and/or poly t-butyl methacrylate and b) poly methacrylic acid. The exposing radiation may be electron beam, x-ray or U.V light. The swelling agent is a mixture of a solvent for the polymer and a nonsolvent liquid which is incapable of dissolving the polymer,regardless of molecular weight. Examples of the solvent are methyl and ethyl "Cellosolve, (Registered Trade Mark), methyl  and ethyl "Cellosolve" acetate, cyclopentanone, cyclohexanone and cycloheptanone and the non- solvent liquid is an aliphatic monohydric alchohol e.g. methyl, ethyl, isopropyl, n-butyl, isobutyl or hexyl alcohol. The nonsolvent liquid is used alone to remove the swollen portions, preferably in conjunction with ultrasonic agitation. The film may be baked prior to exposure at a temperature of from 140C to 230C and/or postbaked at 100C to 170C.
Patent GB-1282249-A (GB)
Title: Improvements in or relating to the production of gallium arsenide crystals
IPC: C30B19/10
Filed: 1971-04-19
Abstract: 1282249 Semi-conductors SIEMENS AG 19 April 1971 [3 Feb 1970] 20614/71 Heading H1K [Also in Division C4] GaAs is deposited by crystallization from a solution of GaAs doped with Si or Ge and also containing 0À5 to 2 wt. per cent Al. The doping effect of Si and Ge is affected by the presence of traces of oxygen in the GaAs and the Al is included to remove any oxygen present. The GaAs, Si or Ge and Al are mixed with Ga and placed in one compartment of a boat. A seed wafer of GaAs is placed in the second compartment of the boat which is then placed in a horizontal furnace through which hydrogen or oxygen-free argon or helium is passed. The apparatus is heated to melt the Ga in which the other materials dissolve, tipped to flood the seed with the solution, allowed to cool slowly to deposit an epitaxial layer of GaAs, and tipped back to pour off the excess solution. The resulting wafer has a PN junction between the seed and the epitaxial layer and may be further processed to form a diode, e.g. a light emitting diode or a photodiode. A vertical form of apparatus may be used. Alternatively cold GaAs, dopant and Al may be continuously added to the hottest part of the solution and a doped GaAs crystal continuously drawn from the coldest part of the solution.
Patent GB-1151311-A (GB)
Title: Superconductive Magnet Systems
Inventor: WEAVER HARRY EDWARD
IPC: H02H7/00
Filed: 1967-05-03
Abstract: 1,151,311. Measuring liquid level electrically: gyromagnetic resonance spectrometer. VARIAN ASSOCIATES. May 3, 1967 [May 5, 1966], No.20628/67. Heading GIN. [Also in Division H2]  A super-conductive magnet system comprising a solenoid 1 Fig.1 in liquid helium 5, located in a Dewar vessel containing liquid nitrogen 8, has facilities for checking the liquid levels continuously, and additional depth-sensing means for automatically shutting down the magnet if the liquid helium falls below a predetermined level. The helium level, monitored by a capacitive probe 17, is indicated on a meter 19 and actuates a warning light 22 at a predetermined low value. The nitrogen level is similarly continuously monitored by capacitive probe 12, indicated on a meter 14 and actuates a warning light 16 at a predetermined level. Two specific levels of the liquid helium are also sensed by temperature-sensitive resistors 23, 24 of carbon or tantalum. The former is connected via bridge 25 and amplifier 26 to switch 27 which actuates an alarm bell 28 and increases the brilliance of lamp 22. The latter, 24, is connected via bridge 29 and amplifier 31 to switch 32 which actuates an alarm lamp 33 and a latching relay 35 to de-energize the holding switches 36 for the magnet's energizing circuit. The magnet is part of a gyromagnetic resonance spectrometer, analyzing material in a glass phial 55.
Patent GB-1118649-A (GB)
Title: Binding agent
Inventor: ANDERSON ROBERT CRAIG
IPC: C08G12/22
Filed: 1966-05-11
Abstract: A binding agent capable of setting to a hardened mass under basic conditions comprises formamide and glyoxal hydrate.  It may also contain toluene diisocyanate.  It keeps indefinitely at pH 6 or below, but sets rapidly at pH 9 or above.  It may be used to bind aggregates of sand, ground stone, coal dust, earth, wood chips, sawdust, Portland cement or plaster of Paris.ALSO:A binding agent capable of setting to a hardened mass under basic conditions comprises formamide and glyoxal hydrate.  It may also contain toluene diisocyanate.  It keeps indefinitely at pH 6 or below but sets rapidly at pH 9 or above.  It may be used to bind aggregates of sand, ground stone, coal dust, earth, wood chips, sawdust, Portland cement or plaster of Paris.ALSO:A binding agent capable of setting to a hardened mass under basic conditions comprises formamide and glyoxal hydrate.  It may also contain toluene diisocyanate.  It keeps indefinitely at pH 6 or below but sets rapidly at pH 9 or above.  It may be used to bind sand, ground stone, coal dust, earth, wood chips, sawdust, Portland cement or plaster of Paris.
Patent GB-821702-A (GB)
Title: A method of producing plush-like goods such as carpets or the like and a machine for performing the same
Inventor: NEBICH RUDI
IPC: D05C15/38
Filed: 1956-07-05
Abstract: 821,702. Sewing machines. TEXTIMAPROJECT. VEB., [formerly KONSTRUKTION UND ENTWICKLUNG FUR TEXTILMASCHINEN VEB.]. July 5, 1956, No. 20818/56. Class 112 Tufting machines; loose stitching. In the manufacture of pile fabrics or carpets, two foundation fabrics 4, 5 are fed in spaced apart relationship to the needles 3 which pierce and pass the pile threads 1 through both fabrics. The pile loops are engaged on the underside of the lower fabric by loopers 8 with or "without "an additional thread to produce a simple or two-thread chain stitch. Alternatively the under thread is inserted by a shuttle. The pile threads are cut between the fabrics by a device 9 to separate the fabrics which are then wound on separate beams. The backs of the fabrics are sized or gummed to bond the loops thereto. This bonding may be effected before cutting the threads in which case the device 9 is omitted from the machine and the separation is effected elsewhere.
Patent GB-700034-A (GB)
Title: Stamping device for printing blocks
IPC: B41C3/04
Filed: 1951-09-04
Abstract: 700,034. Printing surfaces. GAMBLE, H., and SCHWARZ, L. Sept. 4, 1951 [Sept. 6, 1950], No. 20821/51. Class 100 (2) A device for stamping printing formes from e.g. rubber mixtures is characterized in that the vertical bars 3, enclosing the printing forme to be stamped, of a stamping frame are placed yieldingly in a direction perpendicular to the stamping pressure on pressure supporting strips 2. The frame bars 3 are carried by bands 4 on the pressure supporting strips 2 by means of bolts 5 slidable in slots 6 of the bands 4. Between the frame bars 3 and the pressure supporting strip 2 are springs 7 which provide the yieldability of the bars 3. In alternative embodiments, Figs. 3 and 4, and Figs. 5 and 6 (not shown) the springs may be'replaced by rubber cushions or the frame strips may be made as yielding members connected with the strips 2 and reinforced by steel cores vulcanized therein.
Patent GB-877243-A (GB)
Title: Carbonatoalkyl acrylates and methacrylates and method for preparing same
IPC: C07D317/36
Filed: 1958-06-30
Abstract: The invention comprises polymers of compounds of the formula: <FORM:0877243/IV (a)/1> where R is hydrogen or methyl and n is 1-4; and their copolymers with compounds of formula CH2=CR,COOR1, where R is hydrogen or methyl and R1 is C1-8 alkyl; and their copolymers with an unsaturated polyester derived from maleic anhydride and a saturated dihydric aliphatic alcohol of not more than 10 carbon atoms.  Examples describe the polymerization of 2, 3-carbonatopropyl methacrylate, and its polymerization with methyl methacrylate and with an unsaturated polyester resin derived from maleic anhydride and dipropylene glycol.  Benzoyl peroxide and tert. butyl perbenzoate are specified as catalysts. Polymerization may be carried out in bulk and at two or more stages of temperature.  Specification 852,384 is referred to.ALSO:The invention comprises carbonatoalkyl acrylates and methacrylates of formula <FORM:0877243/IV (b)/1> where R is hydrogen or methyl and n is 1-4; and their preparation by reacting a corresponding dihydroxyalkyl acrylate or methacrylate in the presence of a hydrogen chloride acceptor with phosgene or an alkyl ester of chloroformic acid, the alkyl group of which contains 1-8 carbon atoms, and removing the heat of reaction; or by reacting a corresponding carbonatoalkyl alcohol with an acrylyl or methacrylyl chloride in the presence of a hydrogen chloride acceptor, or with an acrylic or methacrylic alkyl ester containing 1-8 carbon atoms in the alkyl group in the presence of a transesterification catalyst (such as sodium in methanol) and a free radical polymerization inhibitor (such as hydroquinone).  Specified hydrogen chloride acceptors are sodium carbonate, pyridine, triethylamine, and basic anion-exchange resins.  The compounds of the invention can be polymerized (see Group IV(a)).  Specification 852,384 is referred to.
Patent GB-1384304-A (GB)
Title: Spindle assembly drive
IPC: F16D67/06
Filed: 1972-05-04
Abstract: 1384304 Spindle drives; brakes MAREMONT CORP 4 May 1972 [2 June 1971] 20904/72 Heading DID [Also in Division F2] In a clutch-brake combination for a spinning machine wherein a clutch-brake plate 28 splined on a driven shaft (spindle blade) 12 is biased by a spring 40 into engagement with a driving pulley 24 and is moved against the spring bias into engagement with a brake surface 36 on energization of a stationary electromagnet 34, energization of a second electromagnet 50 removes the spring bias from the plate 28 which assumes a neutral position in which it is disengaged from both the driving pulley 24 and the brake surface 36 to permit free rotation of the driven shaft 12. The spring 40 acts through a hub 46 on the clutch-brake plate 28 and the hub 46 carries an armature plate 48 which, on energization of the second electromagnet 50, moves the hub 46 against the bias of the spring 40 out of engagement with the plate 28.
Patent GB-827200-A (GB)
Title: Improvements in or relating to the production of semiconductor bodies
Inventor: MLAVSKY ABRAHAM ISAAC
Filed: 1956-07-05
Abstract: In a method of producing semi-conductor bodies, a solid body of semi-conductor material, and a molten mass of the semi-conductor in contact therewith, are maintained with the solid-liquid interface stationary for sufficient time to allow diffusion of a significant impurity from the molten mass to the solid body, and, subsequently, at least part of the molten mass is solidified on to the solid body. As shown, to produce PNP semi-conductor bodies, suitable for use in transistors, 100 grams of solid silicon containing about 0.06 parts per million by atomic proportions of boron is heated in a silica crucible 7 to a temperature 30 DEG  C. above the melting point of silicon by a graphite cup 8 which serves as a thermostatically controlled electrical resistance heater, in a sealed metal enclosure 1 which has been evacuated through a pipe 5.  After an hour a seed crystal 37 mounted in a chuck 23 is dipped into the melt, and the temperature of the heater is lowered to a point at which solidification occurs on to the crystal 37, which is then slowly raised and rotated simultaneously <PICT:0827200/III/1> until about 10 grams of P-type silicon have solidified.  The enclosure 1 is then filled with argon, a pellet of antimony is dropped through a tube 25 into the melt, and the antimony is allowed to diffuse from the melt into the adjacent crystal for 30 minutes, thus establishing an antimony-diffused layer about 0.005 mm. thick, most of which is N-type.  The enclosure 1 is then re-evacuated and, after a period of 5-10 minutes, during which nearly all the remaining antimony evaporates from the melt, growth is re-started.  This sequence of operations is repeated several times, the quantity of antimony which is added to the melt on each occasion being progressively reduced. In a modification, progressively smaller quantities of indium are added to the melt after each evaporation of the antimony, to create P-type layers of different resistivities on each side of each N-type layer. Arsenic or phosphorous may replace antimony.  An NPN body may be made by a similar method in which phosphorous replaces boron and indium or gallium replaces antimony; as phosphorous evaporates from molten silicon in vacuo, the growing operations may take place in an inert atmosphere and phosphorous may be introduced to the melt initially and before each resumption of growth.
Patent GB-382300-A (GB)
Title: Lubricating arrangement for automobiles and like vehicles
IPC: B60R17/02
Filed: 1931-07-22
Abstract: 382,300. Force-feed lubricating. BARON, H., 231, Strand, London.- (Lanz Akt.-Ges., H. ; 53, Lindenhofstrasre, Mannheim, Germany.) July 22, 1931, No. 20950. [Class 12 (iii).] In a motor vehicle, pumps f reciprocated by means of a cam e on a ported shaft d driven by worm gearing b, c from a shaft a draw oil from a tank through a pipe h and deliver it to the engine parts through pipes i, while pumps l, m, also reciprocated by the cam e, deliver through pipes n, o to a rotary distributer p geared to the shaft d, whence oil is delivered through pipes q, r to the parts of the chassis requiring lubrication. The stroke of each plunger is adjustable by means of a screw g. If one of the pipes q is not required, a plug z is removed so as to establish communication between the pipe and a pipe s leading back to the tank.
Patent GB-714810-A (GB)
Title: Method of and apparatus for shaping ceramic articles before final firing
IPC: B28B11/12
Filed: 1952-08-21
Abstract: 714,810. Turning pottery. GENERAL MOTORS CORPORATION. Aug. 21, 1952 [Sept. 18, 1951], No. 20971/52. Class 87 (1). [Also in Group XXII] As shown in Fig. 2, apparatus for turning unfired sparking plug insulator blanks 1 of ceramic with a thermoplastic binder comprises a profile tool 8, which is clamped with its shank 9 enclosed by a heater 12, and is moved transversely of the ceramic blank. The binder may be ethyl cellulose, shellac and N-butyl stearate. In a modification. Fig. 7, the tool is provided with a heating element 22, controlled by a thermocouple 25.
Patent GB-811170-A (GB)
Title: Improvements in and relating to compression-ignition engines
IPC: F02B3/06
Filed: 1955-07-20
Abstract: 811,170. Fuel injection engines. KRUG, H. July 20, 1955 [July 24, 1954], No. 20980/55. Addition to 749,825. Class 7(3) In an engine operating according to the method of the parent Specification, in which the fuel is normally injected immediately on to the wall of a combustion chamber in the piston in the direction of air rotating in the chamber to form a thin film thereon which is vaporized by the rotating air, a substantial proportion of the fuel is mixed directly with the air in the chamber at starting. In Fig. 1 the fuel is normally directed as a jet 5 immediately on to the chamber wall but at starting the nozzle 4 is rotated to direct the jet along the path 8 or 9 for direct mixing with the air. In a modification, Fig. 5, the nozzle 4 is stationary and provided with a separate orifice 4a which is opened at starting. In Fig. 4 the direction of rotation of the air in the combustion chamber is reversed at starting so that it is in opposition to the normally directed jet whereby a large part of the jet is blown away from the chamber wall along the path 22 and does not form a film. The direction of rotation of the air is altered by variation of the position of the screen on the air inlet valve. Alternatively the air swirl may be suppressed at starting whereby a portion of the jet disperses into the air in the chamber instead of forming a film on - the wall.
Patent GB-1112442-A (GB)
Title: Improvements in or relating to insulation-forming or like devices for fluid-tight enclosures and their various applications
IPC: F17C3/04
Filed: 1965-05-19
Abstract: 1,112,442. Heat insulating linings. TECHNIGAZ. 19 May, 1965 [10 July, 1964], No. 21174/65. Heading B7S. [Also in Divisions B5 and F4] A heat-insulating fluid-tight continuous wall construction for a fluid storing container comprises from outside to inside: an outer supporting structure 1, e.g. the hull or inner plating thereof of a ship, a sheet of load bearing lagging consisting of a plurality of substantially rectangular composite panels juxtaposed side-byside and end-to-end and individually secured to said supporting structure, each one of said panels including an inner layer 4 formed of at least one stiff plate of heat-insulating material, at least one second layer of solid heat-insulating filling material 5, and heat insulating connecting spacer means 10<SP>1</SP> fastening the or each plate in spaced relation to said supporting structure thereby leaving therebetween an intermediate space substantially filled with said heat insulating filling material; at least one intermediate, substantially flexible, impervious, continuous sheet means 8, forming a secondary barrier applied against, covering, backed and carried by one face of each plate; and at least one inner, substantially flexible, fluid confining and holding, impervious, continuous lining sheet 7, forming a primary barrier covering, backed and carried by said lagging. Exemplified materials are: plywood for the stiff plate of heat insulating material, cellular material for the second layer of solid heat insulating material and sheet material (preferably corrugated) for the barrier layers. The spacing members 11a, 11b, 12a and 12b (Fig. 2) are preferably arranged to allow flexing of the panels. Fig. 4 shows an alternative construction in which the intermediate insulating material is pulverulent.
Patent GB-643702-A (GB)
Title: Improvements in and relating to dynamo electric machines
Inventor: SCRATCHLEY ARTHUR VICTOR
IPC: H02K3/18
Filed: 1948-08-11
Abstract: 643,702. Coils for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 11, 1948, No. 21211. [Class 35] A rotating field winding of a dynamo-electric machine has edge-wound coils in which some turns 4 are of greater width than the other turns 3 so that the turns 4 project beyond turns 3 and such projections act as fins to circulate air and dissipate heat. The coils 3 are cut in sections and single turns 4 of the wider coil are interposed between these sections, the turns 3, 4 are joined to form one series winding. Specification 120,593, [Class 35], is referred to.
Patent GB-614590-A (GB)
Title: Improvements in or relating to toothed wheel gearing
IPC: F16H61/02
Filed: 1946-07-16
Abstract: 614,590. Toothed gearing; reversing gearing. SULZER FRERES SOC. ANON. July 16, 1946, No. 21235. Convention date, Aug. 1, 1945. [Classes 80 (i) and 80 (ii)] A device for bringing two gear-wheels into mesh is shown in the Figure as applied to spurgears 2 and 3, but is particularly applicable to engaging a driving bevel gear with one or the other of two side bevel gears on a driven shaft to effect a drive in one direction or the other and comprises a control device 5, a ratchet device 6 for intermittently rotating one of the gears a small amount, a presser device 7 for alternately pressing the gears 2, 3 into engagement and a locking device 8. As shown, the gear 2 is carried on a pivoted arm 4 and is in constant mesh with a driving gear 1. A piston 24 of a fluid pressure servomotor 7 is adapted to move the arm 4 to bring the gear 2 into or out of engagement with the gear 3 and a piston 41 of a servomotor 20 is adapted to actuate a pawl 43 to engage with a ratchet-wheel 44 secured to the gear 1 to effect the intermittent rotation of gear 2. For effecting an engagement of the gears 2 and 3 a valve 9 of control device 5 is actuated by a hand-wheel 12 to supply pressure fluid through a pipe 32 to below a piston 28 of locking device 8 to raise this piston and a locking pin 29 and to close an electric switch 31 of an electric motor 16. This motor reciprocates a valve 15 which supplies pressure fluid alternately to the ratchet servomotor 20 and the presser servomotor 7. Thus alternate ratchet and pressing operations are applied to the gear 2 until the teeth assume a position in which correct and full meshing is obtained. On full displacement of control valve' 9 pipe 32 is exhausted to 14 so that the pressure on piston 28 is relieved to allow a spring 36 to move piston 28 downwards for the locking pin 29 to engage a slot 30 on the rod of piston 24 to lock this piston and the arm 4 in the engaged position and also to stop the motor 16 of the ratchet device 6. Disengagement can be effected when desired by reverse operation of the valve 9. In another arrangement, as applied to a bevel reversing gear, the presser device 7 is formed as a double acting device to operate one way or the other according to movement of the control valve 9 and a double locking device is also provided. In a further arrangement for a reversing gear of a railway vehicle driven by, for example, a gas turbine, safety devices are provided to ensure that the engaging device cannot be put into operation should the vehicle still be moving, the brakes not be applied or power gas is being supplied to the turbine. The hydraulic power devices shown may be replaced by mechanical, electrical or pneumatic devices and may be used on other types of vehicles than railway vehicles and on stationary plants in conjunction with any type of prime mover such as steam engines and turbines or internal-combustion engines.